The presence of hormones produced by the _________ _________ after implantation prevent menstruation.

Fill in the blank(s) with the appropriate word(s)


Answer: corpus ; luteum

Biology & Microbiology

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A deletion of a particular stretch of chromosome 15 can cause either Prader-Willi syndrome or Angelman syndrome, depending on  

A.  the parental origin of the normal and deleted chromosome. B.  whether or not the region is methylated properly. C.  whether a translocation event has occurred. D.  whether a nondisjunction event has occurred.

Biology & Microbiology

The genetic makeup of an organism is its

a. phenotype. b. genotype. c. locus. d. gamete.

Biology & Microbiology

What type of mutation is seen here? Wild type: 5?-TAC AAA ATA CAG CGG-3? Mutation: 5?-TAC AAG ATA CAG CGG-3?

A) transition B) transversion C) insertion D) deletion E) nonsense

Biology & Microbiology

A trait in which the heterozygotes have a phenotype that is intermediate between the dominant and recessive phenotypes is an indication of

a. codominance. b. pleiotropy. c. a sex-linked trait. d. incomplete dominance. e. None of these are correct.

Biology & Microbiology